... operating system compatible. 4 Receiver sensitivity:-75bm (standard) up to 4bm, low radiation. 5, modulation: 2.4G Direct Sequence ... windows 7 free drive systems.10 It can be used to connect a variety of desktop and notebook computers, can also support ... the Bluetooth HID protocol to connect a variety of portable electronic devices, IPDA, PDA, UMPC, Pocket ...